Sewing-machine lamp.



R. E. LEVE.

SEWING MACHINE LAMP.

APPLICATION FILED FEB. 27, 1917.

1 269,%69@ Patented June 11,1918.

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Specification of Letters Patent.

Patented June Ill, 1918.

Application filed February 27, 1917. Serial No. 151,211.

To all whom it may concern:

Be it known that I, ROBERT E. Lnvn, a citizen of the United States, and a resident of New York, in the county and State of New York, have invented certain new and I useful Improvements in Sewing-Machine Lamps, set forth in the following specification.

This invention relates to the lighting of sewing machines.

In factories and shops where a large num ber of sewing machines are employed, the problem of lighting that particular locality of each sewing machine which enables the operator to work with the highest elficienoy and, at the same time, relieving the eyes of the operator from all direct light glare, is a difiicult one. It is desirable to limit the lighting to a comparatively small area or spot about and in the rear of the needle and fabric feeding mechanism.

The object of my invention is to provide a structure which will, in an improved manner, project the light from an incandescent electric lamp located centrally relatively to four sewing machines in four beams, each supplying the spot light required for each machine and which, at the same time, will shield the eyes of each operator from any direct light.

The above and furthermore detailed ob jects of my invention will better be understood by reference to the illustrative embodi-- ment shown in the accompanying drawings, forming a part hereof and described in the following specification, to which embodiment the claim is directed only for the purpose of illustration.

In the drawings Figure 1 is a diagrammatic plan view of the invention showing its relation to a set of four sewing machines; Fig. 2 is a vertical section through line II-II of Fig. 1, with parts broken away; and Fig. is an enlarged plan view of the structure. I a

In shops employing large numbers of sewing machines, the machines are arranged in rows A and B, so that the individual machines such as l and 2 are back to back with those such as 3 and 4 of the opposite row.

Intermediate the rows is provided a trough G into which the garment being operated upon is fed.

In carrying out my invention it is convenient to provide a cross-bar 5 across the top of the trough C to serve as a support for the lamp standard 6, which may be of any Well-known construction containing a vertically positioned lamp socket 7 for the reception of an incandescent lamp bulb 8.

' A light inclosing shell 9 of substantially spherical contour has a supporting mounting 10 adapted to engage the lamp socket 7 and support the structure. The shell 9 also has four downwardly and outwardly directed openings 11, at each of which is secured to the shell 9 a downwardly and outwardly directed lightconfining tube 12. Axially opposite, on the other side of each opening 11, is provided a reflector 13. In the embodiment illustrated the shell. 9 itself is shaped, fabricated and polished to form a reflector as an integral part of itself, although it is by no means necessary that the reflector construction be limited to integral structure with the shell. The arrangement of the lamp 8, reflector 13 and tube 12 in each set is such that a beam of light 14, part of which is direct light from the lamp 8 and part of which is reflected from the reflector, is directed onto and limited to the spot 15 for each of the machines 1, 2, 3 and 4..

In the embodiment illustrated the shell 9 has a top opening 16 which may be closed by the canopy 17.

By this structure a spot of light 15 for each of the machines 1, 2, 3 and 4 may be localized about the needle 20 and clamping foot 21, without permitting any light to shine directly into the eyes of the operators.

By using both the direct light from the lamp 8 and also the reflected light from the reflectors, I am able to utilize practically all of the light from the source 8 localized on the spot desired without wasting an appreciable amount of the light energy by transformation into heat.

What I claim and what I desire to secure by United States Letters Patent is:

A. reflecting shade for an incandescent bottom and a plurality of spaced down-t wardly and inwardly directed light reflec- 5 tors; and a plurality of outwardly and downwardly directed light confining tubes opening into said shell, each opposite a light reflector.

In witness whereof I have signed my namezto: this specification, this QQth day of 10 February 1917.

ROBERT E. LEVE.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, 110. 

